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Corrosion inhibition of austenitic stainless steel by some pyrimidine compounds in hydrochloric acid / N. Caliskan in Materials and corrosion, Vol. 63 N° 3 (Mars 2012) 

Public ISBD [article]  in Materials and corrosion > Vol. 63 N° 3 (Mars 2012) . - pp. 231–237 Titre : Corrosion inhibition of austenitic stainless steel by some pyrimidine compounds in hydrochloric acid Type de document : texte imprimé Auteurs : N. Caliskan, Auteur ; E. Akbas, Auteur Année de publication : 2012 Article en page(s) : pp. 231–237 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Acid  corrosion;  pyrimidine  derivatives;  stainless  steel;  inhibition Résumé : The inhibition effect of two pyrimidine derivatives on the corrosion of austenitic stainless steel in 1 M HCl has been studied by Tafel plot, linear polarization, and electrochemical impedance spectroscopy (EIS) at 298 K. Results showed that compounds inhibited steel corrosion in a 1 M HCl solution and inhibition efficiencies increased with the concentration of inhibitor. Polarization curves indicated that all studied pyrimidine derivatives act as mixed type (cathodic/anodic) inhibitors. The adsorption of the inhibitors on the stainless steel surface was found to obey the Langmuir and Dubinin–Radushkevich adsorption isotherm models. Negative values of ΔGads in the acidic media ensured the spontaneity of the adsorption process. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201005788/abstract [article] Corrosion inhibition of austenitic stainless steel by some pyrimidine compounds in hydrochloric acid [texte imprimé] / N. Caliskan, Auteur ; E. Akbas, Auteur . - 2012 . - pp. 231–237. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 63 N° 3 (Mars 2012) . - pp. 231–237 Mots-clés : Acid  corrosion;  pyrimidine  derivatives;  stainless  steel;  inhibition Résumé : The inhibition effect of two pyrimidine derivatives on the corrosion of austenitic stainless steel in 1 M HCl has been studied by Tafel plot, linear polarization, and electrochemical impedance spectroscopy (EIS) at 298 K. Results showed that compounds inhibited steel corrosion in a 1 M HCl solution and inhibition efficiencies increased with the concentration of inhibitor. Polarization curves indicated that all studied pyrimidine derivatives act as mixed type (cathodic/anodic) inhibitors. The adsorption of the inhibitors on the stainless steel surface was found to obey the Langmuir and Dubinin–Radushkevich adsorption isotherm models. Negative values of ΔGads in the acidic media ensured the spontaneity of the adsorption process. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201005788/abstract